Punching and gumming mechanism for envelop-blanks.



F. L. SCHMIDT. PUNGHING AND GUMMING MECHANISM FOR ENVELOP BLANKS.

APPLICATION TILED NOV. 8. 1909. Patented July 11,1911.

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- PUNGHING AND GUMMING MECHANISM FOR BNVELOP BLANKS.

APPLICATION FILED NOV. 8, 1909.

Patented July 11, 1911.

2 SHEETS-SHEET 2.

I\ CB lfizforqey a citizen of the United States, residing at f New York,in the county of New York and State of New York, have invented a newand.

UNI D STATES FERDINAND L. SCHMIDT, or NEW YORK, N. Y., AssIGNoa T0 omensums ENVELOPE comrANY, or SPRINGFIELD, massacnosnr'rs, a compan on OFMAIN E.

PUNGHINQAND GUMMING MECHANISM non. ENVELOP-BLANKSI, I

Application filed. November 8, 1909. Serial No. 526,694.

To all whom it may concern; v

Be it known that I, FERDINAND L. SCHMIDT,

useful Improvement in Punching andfGumming Mechanism forEnvelop-Blanks', of which the following is a specification, accompaniedby drawings forming a part of the same, in which V Figure 1 represents aside elevation of an envelop machine shown in sectional view andembodying my improved punching and .ming mechanism. Fig. 2 is a front eevation of the punching and gumming mechanism shown on a larger scale.Fi 3 is a detached top view of the punching die. Fig. 4 is a side viewof the punching die, and Fig. 5 is a plan view of an envelop blank afterit has been punched and gummed. I

Similar reference characters referto similar parts in the differentfigures.

My present invention relates to a mechanism for punching an opening inthe body of an envelop blank and gumming the marginof the opening toreceive a transparent patch in the manufacture of what is known asoutlook envelops, and my invention consists in the construction andarrangement of parts as hereinafter described and pointed out in theannexed claims.

In the accompanying drawings 1, Fig. 5, represents an envelop blank inextended form, having end flaps 2, 2, a back flap 3 and a seal flap 4which, folded on the broken lines 5, form an envelop having arectangular body 6. The punching and gumming mechanism illustrated inthe accompanying drawings is adapted to punch an opening 7 in the bodyof the envelopin proper position to disclose an address on theinclosure, and having the margin of the openin 7 gummed, as indicated bythe shaded sur ace 8. The punching and gumming mechanism is shown in theaccompanying drawings as forming a component part of an envelop machinedesigned to operate upon a ,pile or stack of envelop blanks for thepurpose of gumming and folding the flaps of the envelop, but the ployedseparated from the other parts of the envelop machine. I

Fig. lof the accompanying drawings represents in side elevation and insectional supporting. and feeding to the o rative Specification of letters Patent. Pgitnteil July 11, 1911,

parts of the mechanism' a pileof. b anks 9,

from which the topmost blank is raised by flap gumming dieslO, 10 intoposition to be engaged by the hooks 11 of a reciprocating conveyer 12and carried over a die plate 13 having an opening 14, corresponding tothe opening 7 to be formed in the envelop blank.

' In the present application I have not. shown in detail thereciprocating conveyer 12 nor the registering means by which the blankis held in the various positions, these means having been fullydescribed in Letters Patent of the United States, No. 401,462, issued toA. A. Rheutan, April 16, 1889. The die plate 13 is supported in a fixedposition upon the table 15 of the envelop. machine, and is arranged tocooperate with areciprocating punch 16 having on its upper side lugs 17,which are connected by a link 18 with one end of a lever 19 pivoted at20 upon the framework of the machine, and having its opposite endconnected by alink 21 with a cam 22 on a cam shaft 23. i The cam 22 iscon structed to depress thepunch 16 and allow it to be raised by meansof a spring 24. The 4 punch 16 is thereby given a vertical reciprocatingmotion within a sleeve 25, which likewise is capable of a verticallyreciprocating movement in fixed ways 26. The sleeve 25 is connected bylinks 27 with one'end of a lever 28, which is pivoted at 29 upon theframework of the machine and connected at its opposite end by a link 30with an actuating cam, not shown, carried upon the cam v shaft 23, saidcam being adapted to vertically depress the sleeve 25 in the ways 26 andallow' it to be raised by a spring 31. Inserted within a recess in thelower edge of the sleeve 25, or otherwise suitably attached thereto, isa strip of elastic material, such as rubber, forming a yielding face 32,to which gum is applied by a reciprocating gumming roller 33, supportedin a frame 34 connected by a link 35 with a swinging lever 36 pivotallysupported upon the framework of the machine at 37 and suitably connectedwith an actuating cam, not shown, to impart a reciprocating movement tothe frame 34 along the horizontal ways 38, by which the gumming roller33 is brought into contact at one end of its travel with a gummingroller 39 revolving in a gum box 40. During the reciprocating movementof the gumming roller 33, it passes into contact with the yielding face32 when the latter is in its highest position, applying gum to the face32 which is transferred to the envelop blank by the downward movement ofthe sleeve 25. Supported abovethe die plate 13 is a stripping.table 41,having an opening suflicient to allow the sleeve 25 to pass in itsdownward movement and bring the yielding gummed face 32 into contactwith an envelop blank held in position over the die plate 13.

The operation of my improved punching and gumming mechanism whenemployed in connection with the operative parts of an envelop makingmachine is as follows Each envelop blank, as it is raised from the pile9 by the flap gumming dies 10 in their vertically reciprocatingmovement, is

stripped therefrom by a stripping plate 42 and deposited uponthereciprocating con- "eyer 12 and engaged by the hooks 11. At the nextforward movement of the conveyer .12 the blank is carried into positionover the die plate 13 and given a period of rest, during which time thesleeve 25 descends carrying the gummed yielding face 32 into contactwith the body of the envelop and applying gum thereto on the margin ofthev opening 7 forming a med surface 8, as indicated by the shadmg 8 inFig. 5. The punch 16 also descends and, passing into the opening 14 ofthe die plate 13, punches the 'hole 7, Fig. 5, in the blank. The punch16 is then raised until its lower surface is brought above the gummedface 32, as indicated by the broken line 43, Fig. 2, thereby causing theenvelop blank to be stripped from the punch. The punch 16 and sleeve 25are then moved upward above the strip-' ping table 41, which releasesthe gummed blank from the sleeve 25, allowing it to rest upon thereciprocating conveyer 12 and be carried at its next forwardmovement tothe folding mechanism, comprising a folding bed 44, plunger 45 and acreaslng plate 46, in the manner common in machines of this class.

The envelop machine, in connection with which my punching land gummingmechanism is illustrated, is provided with mecha-.

nism for feeding and applying a transparent strip from a coil 47 tocover the opening 7 of the envelop blank; but the patch applyingmechanism employed for that purpose forms no part of my presentinvention, it being described in a copending application for LettersPatent, Serial No. 526,358, filed by me November 5, 1909.

I do not confine myself to the employment of a punching and gummingmechanism in connection with an envelop machine, as the same may beemployed separately;

neither do I restrict myself to any particular type of envelop machinewith which the punching1 and gumming mechanism may be employe I claim, c

1. In a mechanism of the class described, a die plate, a reciprocatingpunch, a reciprocating sleeve inclosing said punch, means for applyinggum to said sleeve, and a stripping plate for said sleeve.

2. In a mechanism of the classdescribed, a support for a blank, avertically reciprocating gumming die arranged to gum a portion of saidblank, and a punch arranged to reciprocate within said gumming dieand toform an opening in said blank within said gummed portion.

3. In a mechanism of the class described, a support for a blank, avertically reciprocating punch arranged to form an opening in saidblank, a vertically reciprocating sleeve inclosing'said punch arrangedto gum the margin of said opening before the operation of said punch andto act as a stripping plate for said punch after its operation iscomplete.

4. In a mechanism of the class-described,

a support for a blank, a vertically reciprocating punch arranged to forman opening in said blank, and a vertically reciprocating sleeveinclosing said punch arranged to gum the margin of said opening.

5. In a mechanism of the class described, a support for a blank, avertically reciprocating punch arranged to form an opening in saidblank, a vertically reciprocating sleeve inclosing said punch arrangedto gum the margin of said opening, means for applying gum to the lowerface of said sleeve, said sleeve also arranged to strip the envelopblank from the punch, and a stripping plate arranged to remove theenvelop means for applying gum to said sleeve, and With said gum rollover the face of said means for removing thegummed blank from sleeve. 7said sleeve. Dated this first day of November 1909.

8. In a mechanism of the class described, FERDINAND L. SCHMIDT.

a coiiperating punch and die, a reciprocating Witnesses:

. gumming sleeve, a gum roll, and a recipro- ARTHUR P. BUSH,

eating gumming roll moving from contact MINNIE CLARKE.

